How does alcohol affect my driving?Reduced reaction time. The more alcohol you drink, the more it affects your ability to process information and slows your response time, making it more difficult to react to situations on the road. Drowsiness. Reduced concentration. Impaired vision. Lack of coordination.Nov 27, 2018
The rate of alcohol consumption, the gender and size of the drinker, and how much food is in the stomach all affect BAC.